The Effect of Thermocycling on Surface Layer Properties of Light Cured Polymer Matrix Ceramic Composites (PMCCs) Used in Sliding Friction Pair
Abstract
:1. Introduction
2. Experimental Design, Materials, and Methods
- Vdisc—volume wear of a sample from a dental composite (μm3),
- R—radius of wear trace (3 mm = 3 × 103 μm),
- SAR(Mean)—average value of the cross-sectional area of the wear trace (μm2).
- —mean Vickers hardness of the composite (MPa),
- Vdiscs—mean volume loss of the composite (mm3),
- FN—normal force (N),
- L—friction distance (mm).
- Vdiscs—mean volume loss of the composite (mm3),
- FN—normal force (N),
- L—friction distance (m).
3. Experimental Results and Discussion
3.1. Microhardness
3.2. Indentation Hardness
3.3. Tribological Wear
3.3.1. Abrasion Testing
3.3.2. Microscopic Images of Traces of Abrasive Wear of Non-Thermocycling Composites
3.3.3. Microscopic Images of Fatigue Wear
3.3.4. Microscopic Images of Traces of Abrasive Wear After Thermocycling Composites
4. Conclusions
Author Contributions
Conflicts of Interest
References
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Material | Side | nTC | W | p |
---|---|---|---|---|
Z550 | LC | 0 | 0.95987 | 0.16582 |
Z550 | NLC | 0 | 0.97887 | 0.64768 |
Z550 | LC | 10,000 | 0.96545 | 0.25589 |
Z550 | NLC | 10,000 | 0.93406 | 0.02190 |
FFlow | LC | 0 | 0.96040 | 0.17285 |
FFlow | NLC | 0 | 0.96289 | 0.21006 |
FFlow | LC | 10,000 | 0.87838 | 0.00048 |
FFlow | NLC | 10,000 | 0.95224 | 0.09058 |
Ex-mhyb(P) | LC | 0 | 0.98045 | 0.70620 |
Ex-mhyb(P) | NLC | 0 | 0.92604 | 0.01199 |
Ex-mhyb(P) | LC | 10,000 | 0.93154 | 0.01808 |
Ex-mhyb(P) | NLC | 10,000 | 0.94048 | 0.03590 |
Ex-flow(P) | LC | 0 | 0.85747 | 0.00014 |
Ex-flow(P) | NLC | 0 | 0.85916 | 0.00015 |
Ex-flow(P) | LC | 10,000 | 0.90563 | 0.00280 |
Ex-flow(P) | NLC | 10,000 | 0.98177 | 0.75460 |
Material | nTC | LC | K | k (mm3/Nm) |
---|---|---|---|---|
Z550 | 0 | 40 s LED | 2.52 × 10−2 | 1.13 × 10−4 |
Ex-mhyb(P) | 0 | 40 s LED | 2.35 × 10−2 | 1.20 × 10−4 |
Fflow | 0 | 40 s LED | 1.10 × 10−2 | 8.52 × 10−5 |
Ex-flow(P) | 0 | 40 s LED | 1.48 × 10−2 | 1.12 × 10−4 |
Z550 | 10,000 | 40 s LED | 3.31 × 10−2 | 1.96 × 10−4 |
Ex-mhyb(P) | 10,000 | 40 s LED | 2.96 × 10−2 | 2.03 × 10−2 |
Fflow | 10,000 | 40 s LED | 1.05 × 10−2 | 8.04 × 10−5 |
Ex-flow(P) | 10,000 | 40 s LED | 1.23 × 10−2 | 9.80 × 10−5 |
Material | N | Mean | Min | Max | Std.Dev. |
---|---|---|---|---|---|
nTC = 0 | |||||
Ex-mhyb(P) | 10 | 0.1431 | 0.1162 | 0.1679 | 0.0173 |
Ex-flow(P) | 10 | 0.1152 | 0.0851 | 0.1462 | 0.0159 |
Z550 | 10 | 0.2199 | 0.1947 | 0.2800 | 0.0305 |
FFlow | 10 | 0.1524 | 0.1325 | 0.1729 | 0.0130 |
nTC = 10,000 | |||||
Ex-mhyb(P) | 10 | 0.3087 | 0.2578 | 0.3598 | 0.0311 |
Ex-flow(P) | 10 | 0.0614 | 0.0460 | 0.1008 | 0.0186 |
Z550 | 10 | 0.3832 | 0.2444 | 0.5132 | 0.0935 |
FFlow | 10 | 0.3471 | 0.2728 | 0.4368 | 0.0646 |
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Pieniak, D.; Walczak, A.; Niewczas, A.M.; Przystupa, K. The Effect of Thermocycling on Surface Layer Properties of Light Cured Polymer Matrix Ceramic Composites (PMCCs) Used in Sliding Friction Pair. Materials 2019, 12, 2776. https://doi.org/10.3390/ma12172776
Pieniak D, Walczak A, Niewczas AM, Przystupa K. The Effect of Thermocycling on Surface Layer Properties of Light Cured Polymer Matrix Ceramic Composites (PMCCs) Used in Sliding Friction Pair. Materials. 2019; 12(17):2776. https://doi.org/10.3390/ma12172776
Chicago/Turabian StylePieniak, Daniel, Agata Walczak, Agata M. Niewczas, and Krzysztof Przystupa. 2019. "The Effect of Thermocycling on Surface Layer Properties of Light Cured Polymer Matrix Ceramic Composites (PMCCs) Used in Sliding Friction Pair" Materials 12, no. 17: 2776. https://doi.org/10.3390/ma12172776